Index-card.



No. 808,909. PATENTED JAN. 2, 1906.

J. s. DUNCAN & 0. N. TEVANDBR.

INDEX G'ARD.

APPLICATION FILED FEB-13.1905.

UNITED STATES PATENT OFFICE.

JOSEPH S. DUNCAN AND OLOF N. TEVANDER, OF CHICAGO, ILLINOIS, ASSIGNORSTO ADDRESSOGRAPH COMPANY, A CORPORATION OF ILLINOIS.

INDEX-CARD.

Specification of Letters Patent.

Patented Jan. 2, 1906.

To all whom, it may concern.-

Be it known that we, JOSEPH S. DUNoAN and 01.0]? N. TEVANDER, citizensof the United States, residing at Chicago, in the county of Cool; andState of Illinois, have invented new and useful Improvements inIndex-Cards, of which the following is a specification.

The object of this invention is to provide a detachable tab for cards ofa card-index system adapted to form an index for the classificationaccording to which the cards are arranged in trays or otherwise.

The invention is particularly useful in connection with the card indexsystem covered by'the application of Joseph S. Duncan, filed February11, 1905, Serial No. 245,262; but it can be used in other connectionswith equally satisfactory results.

In this application we employ the term card in its broad generic senseas comprising a common card, a printing device, or any other devicewhich is capable of use in accordance with the ordinary card-indexsystem, and in the accompanying drawings we have selected for thepurposes of this description a card comprising a holder carrying aprinting-plate and a record-strip.

In the accompanying drawings, Figure 1 is a front View of the card withthe tab thereon. Fig. 2 is a back view of the card and tab. Fig. 3 is adetail enlarged front view of the tab. Fig. 4 is an end View of the tab.Fig. 5 is a sectional Viewon the line 5 5 of Fig. 1.

The card illustrated in the drawings comprises a holder 11, carrying aprinting-plate 12 and a paper or cardboard strip 13, which we prefershould bear an impression of the address on the printing-plate and anyother information desired relating thereto. This plate and strip can befastened to the card in any suitable manner, and in the constructionillustrated the strip is located above the plate. We desire to have itunderstood at the outset that the invention can be used with cards ofmany other varieties than the one herein shown and described and withequally satisfactory results, and we do not intend to limit or restrictthe application of our invention to this particular form of card. .Theupper and lower edges of the holder are preferably turned over to formflanges 11 to assist in holding the plate and strip.

The card is provided with a projection 14, which in the form illustratedis cut and stamped out of the holder and bent up to extend above theupper edge of the holder. This projection may be utilized also todesignate a series in the card-index system described in theabove-mentioned application, or it may be provided simply for thepurpose of sustaining the detachable tab, which is interlockedtherewith. The tab 19 is cut out at 20 and provided with a top plate 21,having side flanges 22 and end flanges 22Fand forming a support for theindex-strip 24. The tab also has a foot 25, and this foot is offset at26, and the support 21 is offset at 27 so that the foot may enter theopening 28 in the holder 11 and the support 21 may slip down in front ofthe projection 14. The lower edge of the support 21 of the tab isadapted to rest on the upper edge of the holder, the offset 27 in thetab bringing the support forward sufflciently to permit it to slide downin front of the projection 14 and to a point below the opening 15therein at the same time that the foot is entering the opening 28. Thetab will ordinarily be held securely in place by reason of theengagement of the support with the projection and of the foot with theholder; but as a further precaution against accidental displacement Imayalso provide a spring-lip 29, which is arranged to engage the top wall30 of the opening 28 in the holder.

Detachable tabs, in accordance with this invention, can be easily andquickly shifted from one card to another, and they are particularlyimportant in connection with cards which are utilized as printingdevices as well as record devices, because they form a secure lookingengagement with the card and are not liable to become displaced duringthe printing operation.

Without limiting ourselves to the exact construction and arrangement ofparts herein shown and described, what we claim, and desire'to secure byLetters Patent, is

1. The combination of a card provided with a projection extending beyondone edge thereof, and a detachable index-tab for the card adapted toform an interlocking. engagement with said projection.

2. The combination of a card having an opening therein, a projectionextending be- I yond an edge of the card, and a tab having a support anda foot, said foot being adapted to enter the opening in the card andsaid support being adapted to lie in front of the projection.

3. The combination of a card having an opening therein, a projectionextending be yond an edge of the card, and a tab having a foot adaptedto enter the opening in the card through the back thereof and an offsetsupport adapted to lie in front of the projection.

4:. The combination of a card having an opening therein, a projectionextending beyond an edge of the card, and a tab having an offset supportand an offset foot, said foot said opening to lock the tab in place onthe card.

6. The combination of acard having a projection thereon cut and stampedout of the card, said projection extending above the upper edge of thecard, and a tab cut out to receive the projection and provided With afoot adapted to enter the opening in the card through the back thereofand a support adapted to lie in front of the projection and upon theupper edge of the card.

7. The combination of a card having an opening therein, a projection cutand stamped out of the card and extending above its upper edge, a tabcut out to receive the projection, an offset foot on the tab adapted toenter the opening in the card through the back thereof, and an offsetsupport on the tab adapted to lie in front of the projection and abovethe upper edge of the card.

' JOSEPH S. DUNCAN. OLOF N. TEVANDER. Witnesses:

J. B. HALL, WM. 0. BELT.

